<div style="position: relative;">
<div style="width: 100px; height: 100px; background-color: red;"></div>
<div style="visibility: hidden; position: absolute; top: 0;">
<div id="inner" style="width: 100px; height: 100px; background-color: green;"></div>
</div>
</div>
<script src="../../resources/run-after-layout-and-paint.js"></script>
<script>
if (window.testRunner)
testRunner.waitUntilDone();
runAfterLayoutAndPaint(function() {
document.getElementById("inner").style.visibility = "visible";
if (window.testRunner)
testRunner.notifyDone();
});
</script>